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The costs for wind and solar power generating systems have decreased dramatically over the past decade. According to the International Renewable Energy Agency (IRENA), the global weighted-average levelized

The rapidly spreading Bootleg Fire tripped off transmission lines that transport power from the Pacific Northwest to California and other states over the weekend, prompting the California Independent System Operator (ISO) to issue another Flex Alert—the sixth such conservation notification this summer. According to the state’s Incident Information System, the intense fire in Southern-Central Oregon […]

Stricken by repeated extreme heat events, the prospect of a worsening drought, incremental resource delays, and the “unforeseen” loss of 300 MW in thermal resources, California has set out to secure additional energy resources to ensure reliability this summer. Responding to a June 29 letter from the California Public Utilities Commission (CPUC) and the California […]

The need for demand response programs, particularly those that help stabilize the grid, is evident as electricity customers seek a more reliable power supply. Enter virtual power plants (VPPs), a way for

The North American Electric Reliability Corp. (NERC) is warning that large swathes of the North American bulk power system (BPS) could face “elevated risks” of energy shortfalls this summer, especially if temperatures surge beyond normal peaks. But in California, risks are even more pronounced, owing to its reliance on imports to offset falling solar PV […]

There’s new interest in one of the world’s oldest resources, as governments and investors worldwide look for advanced ways to tap geothermal energy. Geothermal wells have been producing energy for more

In mid-August, the western U.S. experienced some of the most extreme heat it has encountered in recorded history. Temperatures in some locations were up to 20F above normal. During the hot spell, California

The U.S. Department of Energy (DOE) on Sept. 6 took the rare but drastic action of issuing an emergency order under the Federal Power Act (FPA) to authorize the maximum operation of three natural gas–fired facilities on the California Independent System Operator’s (CAISO’s) grid whose full capability had been stranded by federal air quality and […]

A battery energy storage project in California is set to be the world’s largest in terms of generation capacity when the facility is fully energized later in September. McCarthy Building Companies’ Renewable Energy & Storage group, based in Phoenix, Arizona, on Sept. 1 said the company had recently completed construction of LS Power’s 250-MW Gateway […]

Late last week, to manage a potential large-scale power outage driven by triple-digit temperatures, the California Independent Service Operator (CAISO) called on utilities to implement rolling outages across the California grid. The shutdown of three natural gas power plants and a significant decline in available wind power were cited as the primary reasons behind the […]